Signal transmitting circuit

Claim 2

A transistor circuit comprising a data line, at least one memory cell coupled to said data line, means for receiving an input signal, a delay circuit having an input terminal coupled to said receiving means, said delay circuit generating a delayed input signal at its output terminal after a controlled amount of delay time has elapsed from the receipt of said input signal, said delay circuit including a variable constant circuit, a time constant of said variable time constant circuit being changed between a first value and a second value in response to a first control signal, means for applying said input signal supplied at said input terminal of said delay circuit to said variable time constant circuit, means for coupling the output of said variable time constant circuit to said output terminal of said delay circuit, and means for transmitting said delayed input signal at said output terminal of said delay circuit to said data line.

Claim 3

The circuit according to claim 1, in which said transmitting means includes a buffer circuit coupled to said output terminal of said delay circuit and transfer gate means coupled between said data line and the output terminal of said buffer circuit, said transfer gate means being controlled by a second control signal, and said first control signal is generated by delaying said second control signal.

Claim 4

The circuit according to claim 1, in which said variable time constant circuit includes a series circuit of a transistor controlled by said first control signal and a capacitor coupled between said transistor and a constant potential.

Claim 5

The circuit according to claim 1 in which said variable time constant circuit includes a variable resistor means whose resistance is controlled by said first control signal.

Claim 6

A memory circuit compressing a data line, at least one memory cell, first means for receiving an input signal, second means for receiving a control signal having first and second logic levels, a variable delay circuit having an input terminal coupled to said first means, said delay circuit generating a delayed input signal at its output terminal after a controlled amount of delay time has elapsed from the receipt of said input signal, means for operatively applying said delayed input signal to said data line, first control means for enabling said applying means in response to said first logic level of said control signal, and second control means responsive to said control signal for controlling a delay time of said variable delay circuit between a first value and a second longer value, said second control circuit setting the delay time at said first value when enabling of said applying means is started and at said second value when the enabling of said applying means is terminated.

Claim 7

A memory circuit compressing a data line, at least one memory cell, first means for receiving an input signal, second means for receiving a control signal having first and second logic levels, a variable delay circuit having an input terminal coupled to said first means, said delay circuit generating a delayed input signal at its output terminal after a controlled amount of delay time has elapsed from the receipt of said input signal, means for operatively applying said delayed input signal to said data line, first control means for enabling said applying means in response to said first logic level of said control signal, and second control means responsive to said control signal for controlling a delay time of said variable delay circuit between a first value and a second longer value, said second control circuit setting the delay time at said first value when enabling of said applying means is started and at said second value when the enabling of said applying means is terminated.

Claim 8

The memory circuit according to claim 5, in which said applying means includes a transfer gate coupled between said data line and said output terminal of said delay circuit.

Claim 9

The memory circuit according to claim 5, in which said first control means includes an inverter having an input coupled to said second receiving means, and said second control means includes a delay circuit having an input terminal receiving a signal of said inverter.